Application of conductive polymers in biocathode of microbial fuel cells and microbial community
Application of conductive polymers in biocathode of microbial fuel cells and microbial community
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DOI：
10.1016/j.biortech.2012.03.115
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发表时间：
2012-07-01
影响因子：
11.4
通讯作者：
Ren, Hongqiang
中科院分区：
文献类型：
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作者：
Li, Chao;Ding, Lili;Ren, Hongqiang
采用聚苯胺（PANI）及其共聚物聚苯胺-co-邻氨基酚（PANDA）、聚苯胺-co- 2,4 -二氨基酚（PANDAP）和聚苯胺- 1,8 -二氨基萘（PANDAN）四种导电聚合物改性碳毡，分别作为微生物燃料电池（MFC）的好氧非生物阴极和生物阴极。与未经改性的聚合物相比，这四种聚合物都能显著提高非生物阴极（提高300%）和生物阴极（提高180%）的功率密度。引入不同官能团的共聚物在MFC性能上有进一步的特殊优势：含-OH的PANDA和PANDAP对阴极DO和pH变化的敏感性较低；含-NH3的PANDAP和PANDAN为生物膜提供了更好的附着条件，使其具有更高的功率输出。在导电聚合物涂层的帮助下，阴极生物膜变得更厚，根据生物多样性分析，优势门从β -变形菌门（未修饰）转变为α， γ -变形菌门（修饰），这可能是修饰mfc具有优势的原因。(C) 2012 Elsevier Ltd.版权所有。
Four kinds of conductive polymers, polyaniline (PANI) and its co-polymers poly (aniline-co-o-aminophenol) (PANDA), poly (aniline-co-2, 4-diaminophenol) (PANDAP) and poly (aniline-1, 8-diaminonaphthalene) (PANDAN) were applied to modify carbon felts as the aerobic abiotic cathodes and biocathodes in microbial fuel cells (MFC). Compare to unmodified, all the four polymers can significantly improve the power densities for both abiotic cathodes (increased by 300%) and biocathodes (increased by 180%). The co-polymers with different functional groups introduction had further special advantages in MFC performance: PANDA and PANDAP with -OH showed less sensitivity to DO and pH change in cathode: PANDAP and PANDAN with -NH3 provided better attachment condition for biofilm which endowed them higher power output. With the help of conductive polymer coats, the cathode biofilm became thicker, and according to biodiversity analysis, the predominated phyla changed from beta-Proteobacteria (unmodified) to alpha, gamma-Proteobacteria (modified), which may be responsible for the superiority of the modified MFCs. (C) 2012 Elsevier Ltd. All rights reserved.